Hatch.



PATENTED AUG. 18, 1903.`

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HATCH.

APPLICATION FILED JAN. 3, 1903.

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No. 736,357. PATBNTED AUG. 18, 190s. ,I

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HATCH.

PPLIATION FILED JAN. 3, 1903. b N0 MODEL. v 2 SHEETS-SHEET 2.

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PATENT Patented August 18, 1903.

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HARRYBROUSSEAUVOF WEST SUPERIOR, WISCONSIN.

HATCH.

`Sl?EGIFICATION forming part of Letters :Patent No. 736,357, dated August 18, 1903.

` Application filed January 3, 1903. Serial No. 137.731. (No model.)

To all whom it may concern:`

Be it known that I, HARRY BRoUssEAU, a

` citizen of the United States, residing at West ticularly to hatches for closing hatchways in the deck of a ship, although it may be applied to similar openings in other places without departing from the scope of the invention.

The object of the invention is to form an `improved telescoping hatch comprising several parts which may be nested at the side of the hatchway to open the same orrextended to close the same.

The invention is particularly useful in iron ships or iron hatches and is so illustrated in the accompanying drawings.

A further object of the invention is the provision of improved means for operating a hatch.

Further objects and advantages will be apparent from the following description and the accompanying drawings, in which-n Figure 1 isr a-plan of the hatch closed. Fig. 2 is a plan of the same open. Fig. 3 is an end elevation showing the deck in section with the hatch closed. Fig. Il is a similar view with the hatch open. Fig. 5 is a cross-section; and Figs. 6 and 7 are details in longitudinal section, showing the hatch respectively partly open and closed and also showing a modification comprising a chain to hold the parts of the .y hatch in place. A

Referring particularly to the drawings, the

hatch, as shown, comprises overlappin g plates 6, which are free to slide upon each other to an extent and by means to be hereinafter described. The headeledges of the hatchway `are indicated at 7 and thecoamings at 8. `Each plate 6 has depending end flanges 6, which are formed to hook under projecting rims 7a, produced on or secured to the headledges. The plates and their flanges are progressively increased in size or stepped from the end of the hatch to the middle to receive each other, and the rims above referred to are also stepped accordingly. Forvthe sake of strength and in use over wide hatchways the hatch-plates may be provided at their underlapping' edges with depending trussflanges 6", and when so made the ends of t-he truss-flanges rest on shoulders 7b, produced in the head-led ges. It will be seen from this construction that the hatch-plates will slide back and forth upon the rims and each other to close or open the hatchway, the movement of each plate in closing the hatchway being stopped by the appropriate step in the rims, and in opening the hatchway the flanges 6b successively contact and nest theiparts over the coamings at the ends of the hatchway. In addition to the stepped construction of the rims the extension of the parts may be lim-' ited and separation prevented by chains 9, extending between the truss fianges, and when the hatch is telescoped the chains hang between the trusses, as shown in Fig. 6. 'Ihe hatch is shown formed in two sections meetingat the middle of the hatchway, and 10 findicates a plate joined to one of the outer parts 6 to cover and close the crack at the middle.

The hatch made as above stated may be operated by hand or any other suitable manner; but"I show a novel and efficient means comprising crossed chain-belts 1,1, extending beside the headled ges and around chainsprockets l2 on shafts 13. The outermost plates 6 of each section of the hatch are connected to opposite runs of the chain-belts, as by suitable chain hooks or clamps, (indicated at 14.) One ofthe shafts has at one'end a gear 13, which may conveniently be a clutch-gear, meshing with a bevel-gear l5 on a vertical counter-shaft 15, extending through the deck 16 of the vessel and driven by bevel-gearing from a line-shaft, (indicated at 17 which may be driven by the engine of the ship or by any other suitable motor. It is intended that the lineshaft shall extend fore and aft to all the hatches, so that they can allbe opened at once, if desired, or by use of a clutch-gear, as above referred to, can be opened one at a time.

IOO

It is believed that from the above description the construction and operation of the hatch will be clearly evident, and it is to be noticed that when telescoped the hatch takes very little deck space and also acts as a protection to the coamings. Any number of plates maybe used and various modifications may be made within the scope of the invention.

Having thus described the invention, what Iclaim as new7 and desire to secure by Letters Patent, is-

l, The combination with hatchway-ledges, of telescopic overlapping hatch-plates having end flanges engaging the ledges.

2. A hatch formed of two opposite sections each comprising telescopic parts, in combination with means for simultaneously moving the respective parts in opposite directions.

3. The combination with hatchway-ledges having a stepped rim, of overlapping hatchplates having telescopic end anges engaging the-rim. y

4. A hatch composed of telescopic overlapping-plates having truss-flanges depending lengthwise at the underlappin g edges thereof.

5. The combination with hatchWay-ledges having a shoulder thereon, of telescopic hatch-plates having truss-flanges depending lengthwise and resting at their ends upon the shoulders.

6. The combination with hatchway-ledges having a projecting stepped rim, vof overlapping telescopic hatch-plates having overlapping end flanges hooked under the rim.

7. The combination with hatchway-ledges having an outer projecting rim and inner projecting shoulder, of overlapping telescopic hatch parts hooked under the rim and snpported on the shoulder.

8. A hatch formed of sections each comprising telescopic parts, in combination with a belt connected at opposite runs to a part of each section, and means to drive the belt to simultaneously telescope the parts and open or close the hatchway.

9. A hatch formed of oppositely-sliding sections, in combination with a belt connected at opposite runs-to each section, and means to drive the belt. y

l0. The combination with a floor having a hatchway, of a sliding hatch, an operatingbelt connected thereto, a shaft under the floor, and transmission devicesextending through the iioor to drive the belt. y

In testimony whereof I afX my signature in presence of tWo witnesses.

HARRY BROUSSEAU.

Witnesses ARTHUR H. PorvrN, R. I. TIPTON. 

